Atmospheric inorganic nitrogen input via dry, wet, and sea fog deposition to the subarctic western North Pacific Ocean
Aerosol, rainwater, and sea fog water samples were collected during the cruise conducted over the subarctic western North Pacific Ocean in the summer of 2008, in order to estimate dry, wet, and sea fog deposition fluxes of atmospheric inorganic nitrogen (N). During sea fog events, mean number densit...
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ftcopernicus:oai:publications.copernicus.org:acp16177 2023-05-15T18:28:05+02:00 Atmospheric inorganic nitrogen input via dry, wet, and sea fog deposition to the subarctic western North Pacific Ocean Jung, J. Furutani, H. Uematsu, M. Kim, S. Yoon, S. 2018-01-15 application/pdf https://doi.org/10.5194/acp-13-411-2013 https://www.atmos-chem-phys.net/13/411/2013/ eng eng doi:10.5194/acp-13-411-2013 https://www.atmos-chem-phys.net/13/411/2013/ eISSN: 1680-7324 Text 2018 ftcopernicus https://doi.org/10.5194/acp-13-411-2013 2019-12-24T09:55:38Z Aerosol, rainwater, and sea fog water samples were collected during the cruise conducted over the subarctic western North Pacific Ocean in the summer of 2008, in order to estimate dry, wet, and sea fog deposition fluxes of atmospheric inorganic nitrogen (N). During sea fog events, mean number densities of particles with diameters larger than 0.5 μm decreased by 12–78%, suggesting that particles with diameters larger than 0.5 μm could act preferentially as condensation nuclei (CN) for sea fog droplets. Mean concentrations of nitrate (NO 3 − ), methanesulfonic acid (MSA), and non sea-salt sulfate (nss-SO 4 2− ) in sea fog water were higher than those in rainwater, whereas those of ammonium (NH 4 + ) in both sea fog water and rainwater were similar. These results reveal that sea fog scavenged NO 3 − and biogenic sulfur species more efficiently than rain. Mean dry, wet, and sea fog deposition fluxes for atmospheric total inorganic N (TIN; i.e. NH 4 + + NO 3 − ) over the subarctic western North Pacific Ocean were estimated to be 4.9 μmol m −2 d −1 , 33 μmol m −2 d −1 , and 7.8 μmol m −2 d −1 , respectively. While NO 3 − was the dominant inorganic N species in dry and sea fog deposition, inorganic N supplied to surface waters by wet deposition was predominantly by NH 4 + . The contribution of dry, wet, and sea fog deposition to total deposition flux for TIN (46 μmol m −2 d −1 ) were 11%, 72%, and 17%, respectively, suggesting that ignoring sea fog deposition would lead to underestimate of the total influx of atmospheric inorganic N into the subarctic western North Pacific Ocean, especially in summer periods. Text Subarctic Copernicus Publications: E-Journals Pacific Atmospheric Chemistry and Physics 13 1 411 428 |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
description |
Aerosol, rainwater, and sea fog water samples were collected during the cruise conducted over the subarctic western North Pacific Ocean in the summer of 2008, in order to estimate dry, wet, and sea fog deposition fluxes of atmospheric inorganic nitrogen (N). During sea fog events, mean number densities of particles with diameters larger than 0.5 μm decreased by 12–78%, suggesting that particles with diameters larger than 0.5 μm could act preferentially as condensation nuclei (CN) for sea fog droplets. Mean concentrations of nitrate (NO 3 − ), methanesulfonic acid (MSA), and non sea-salt sulfate (nss-SO 4 2− ) in sea fog water were higher than those in rainwater, whereas those of ammonium (NH 4 + ) in both sea fog water and rainwater were similar. These results reveal that sea fog scavenged NO 3 − and biogenic sulfur species more efficiently than rain. Mean dry, wet, and sea fog deposition fluxes for atmospheric total inorganic N (TIN; i.e. NH 4 + + NO 3 − ) over the subarctic western North Pacific Ocean were estimated to be 4.9 μmol m −2 d −1 , 33 μmol m −2 d −1 , and 7.8 μmol m −2 d −1 , respectively. While NO 3 − was the dominant inorganic N species in dry and sea fog deposition, inorganic N supplied to surface waters by wet deposition was predominantly by NH 4 + . The contribution of dry, wet, and sea fog deposition to total deposition flux for TIN (46 μmol m −2 d −1 ) were 11%, 72%, and 17%, respectively, suggesting that ignoring sea fog deposition would lead to underestimate of the total influx of atmospheric inorganic N into the subarctic western North Pacific Ocean, especially in summer periods. |
format |
Text |
author |
Jung, J. Furutani, H. Uematsu, M. Kim, S. Yoon, S. |
spellingShingle |
Jung, J. Furutani, H. Uematsu, M. Kim, S. Yoon, S. Atmospheric inorganic nitrogen input via dry, wet, and sea fog deposition to the subarctic western North Pacific Ocean |
author_facet |
Jung, J. Furutani, H. Uematsu, M. Kim, S. Yoon, S. |
author_sort |
Jung, J. |
title |
Atmospheric inorganic nitrogen input via dry, wet, and sea fog deposition to the subarctic western North Pacific Ocean |
title_short |
Atmospheric inorganic nitrogen input via dry, wet, and sea fog deposition to the subarctic western North Pacific Ocean |
title_full |
Atmospheric inorganic nitrogen input via dry, wet, and sea fog deposition to the subarctic western North Pacific Ocean |
title_fullStr |
Atmospheric inorganic nitrogen input via dry, wet, and sea fog deposition to the subarctic western North Pacific Ocean |
title_full_unstemmed |
Atmospheric inorganic nitrogen input via dry, wet, and sea fog deposition to the subarctic western North Pacific Ocean |
title_sort |
atmospheric inorganic nitrogen input via dry, wet, and sea fog deposition to the subarctic western north pacific ocean |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-13-411-2013 https://www.atmos-chem-phys.net/13/411/2013/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acp-13-411-2013 https://www.atmos-chem-phys.net/13/411/2013/ |
op_doi |
https://doi.org/10.5194/acp-13-411-2013 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
13 |
container_issue |
1 |
container_start_page |
411 |
op_container_end_page |
428 |
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1766210426957201408 |